Instructions
Let's learn about chemical reactions while making delicious brownies! Follow the recipe below and answer the questions as you go. Have fun baking!
Brownie Recipe
Ingredients:
- 1 cup of flour
- 1/2 cup of sugar
- 1/2 cup of cocoa powder
- 2 eggs
- 1/4 cup of oil
- 1 teaspoon of vanilla extract
- 1 teaspoon of baking powder
- A pinch of salt
- 1/2 cup of chocolate chips (optional)
Instructions:
- Melt the chocolate and oil in a saucepan over low heat or in a microwave-safe bowl in short bursts.
- In a separate bowl, mix together the flour, sugar, cocoa powder, baking powder, and salt.
- Add the eggs and vanilla extract to the dry ingredients. Mix well until combined.
- Pour the melted chocolate and oil into the mixture and stir until smooth.
- If using chocolate chips, fold them into the batter.
- Pour the batter into a greased baking pan and bake at 350°F (175°C) for 20-25 minutes.
Questions About Chemical Reactions
1. What happened when you mixed the eggs into the dry ingredients? What kind of chemical reaction do you think occurred?
2. Why does the baking powder make the brownies rise? What chemical reaction makes this happen?
3. When you heated the brownies in the oven, what changes did you notice? How did the heat affect the ingredients?
4. What do you think would happen if you left out one of the ingredients, like the eggs or the baking powder? Why?
5. If you wanted to make the brownies chewier or fudgier, what might you do differently? How would that affect the chemical reactions during baking?
Extra Fun Question
Imagine you're creating your own recipe for a new kind of treat. What ingredients would you use and what chemical reactions do you think would happen during cooking? Describe your creation!